Home / 747,149,664.40-1,119,212,842.20-517,378,195.60

Finding the Fourth Proportional to 747,149,664.40, 1,119,212,842.20 and 517,378,195.60

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Solution

The fourth proportional to 747,149,664.40, 1,119,212,842.20 and 517,378,195.60 is: 775,020,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,149,664.40 : 1,119,212,842.20 = 517,378,195.60 : x
  2. Step 2: Convert to fraction form
    747,149,664.40/1,119,212,842.20 = 517,378,195.60/x
  3. Step 3: Cross multiply
    747,149,664.40x = 1,119,212,842.20 × 517,378,195.60
  4. Step 4: Simplify right side
    747,149,664.40x = 579,056,320,789,783,552
  5. Step 5: Solve for x
    x = 579,056,320,789,783,552/747,149,664.40
  6. Step 6: Final answer
    x = 775,020,519.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.